Compressor



N0V- 18 .1958 J. w. JoNAssEN 2,860,828

COMPRESSOR Filed July 29, 1954 2 Sheets-Sheet l INVENTOR. JORGEN WJONASSEN am SM ATTOPNEV Nov. 18, 1958 J. w. JoNAssr-:N

COMPRESSOR 2 Sheets-Sheet 2 Filed July 29, 1954 INVENTOR. JONASSEN JRGENATTORNEY lniteciStatesy PatentO ice Y. a a H Y A l A latented Nov. 18,19,58

Y COMPRESSOR K Jorgen W. Jonassen, Rutherford, NJ. i Y

Application July 29, 1954, serial 110,446,467 f" f 3 claims. l(cuco-138) This invention relates to compressorsof the coniccrank class, theclass in which the axis of the driving crank describes a cone. Itsprincipal object is to provide im-v provements in the construction,arrangement, and control of comic-crank pumps and compressors. Otherobjects are to provide an improved compressor of variable capacity atconstant speed; to provide an improved means of driving the displacerpermitting ready adjustability of the working clearances and an overloadrelease or safety valve inherent in the mechanism; to provide improvedmeans for cooling the displacer and distributing the heat ofcompression; and to provide an improved compressor capable of high-speedoperation with perfect dynamic balance. Another object is to provide animproved compressor readily adaptable for use in multiple units eitherin parallel or lfor multi-stage operation.

These and -other objects of the invention will be apparent from thefollowing description taken in connection with the drawings in which-Fig. 1 is a longitudinal section of the compressor;

Fig. 2 is a transverse section on the line 2-2 of Fig. 1;

Fig. 3 is a transverse section on the line 3 3 of Fig. 1;

Fig. 4 is a sectional view taken on the line 4-4 of Fig.3; l

Fig. 5 is a sectional View on the broken line 5 5 .of Fig. 3;

Fig. 6 is a transverse section of the driving mechanism taken on theline 6-6 of Fig. l; and

Fig. 7 is a diagram showing the rangeof the capacity control. f u

Referring to the drawings, attached to the motor housing 10 are theframe members 11 and 12 of the compressor with the separatingdiametrical disc 13 between them. Diametrical disc 13 consists ofseveral parts and is provided with inlet passage 14, inlet port 15,discharge ports 16, and discharge passage 17. Discharge ports 16 areprovided wtih reed Valve plates 18.

Diametrical disc 13 lis also provided with a spiral plug valve 20operable in bushing 21, the plug valve 20 having a spiral slot 22coacting progressively with straight slot 23 of disc 13. Unloadingconduit 19 connects plug valve 20 with discharge passage 17.

Spherical liners 26 are clamped between frame members 11 and 12 withdiametrical disc 13. Disc 13 is provided with a central sphericalbushing 29. Operable in bushing 29 is the pilot ball 30 of Wabbler 33which has conical surfaces 31 -coacting with disc 13 and sphericalsurfaces 32 operable within spherical liners 26.

A sector-shaped dividing plate 34 connects the two conical surfaces 31of Wabbler 33. Dividing plate 34 is slidable within fork 40 which mayoscillate in a radial sleeve 44 in diametrical disc 13. 4Fork 40 is heldin contact with pilot ball 30 by ball bearing 43,'spring 42, and cap 41.Dividing plate 34 and fork 40 form a radial partition in pumpingchambers 62 and 63, and'serve to separate the inlet ends (having inletports of the chambers from their discharge ends (having discharge ports16).

, 2 Wabbler 33 is operable by `conic crank 35 on which is mounted ballbearing 36 secured by nut 37. 35 is provided with conduit 38 connectingwith the hollow interior chambers of the spherical sectors of Wabbler33. Ball bearing 36 fits slidably within fork 50 of driving member 51keyed to the motor shaft 52. Operating clearance 'or contact of conicalfaces 31 of Wabbler 33 with disc 13 may be Iadjusted by screw 53. Screw53 is threaded into washer 54 which is normally seated by spring 55 asshown in Figs. 1 and 6. Y j

Diametrical disc 13 has several functions. It isa wall between pumpingchambers 62 and 63. It provides channels for inlet and discharge. Ithouses the discharge valves. It houses the control valve means andfacilitates the provision of stepless or continuous control of thecompressor output. In operation, ,motor shaft 52 drives forked member 51causing conic crank 35 and Wabbler 33 to gyrate in pilot bushing 29 andwithin spherical liners 26. Air or other' working medium is sucked thruinlet ports 15 into pump# ing chambers 62 and 63, and forced out thrudischarge ports 16 by the pumping act-ion of Wabbler 33 in a well-Aknown manner.

Compression in either chamber 62 or 63 normally" reduced until, finally,as lip 65 approaches lip 66, the

output would be zero. p

Substantially equivalent control of the output per revolution is VhadbyV Iturning plug valve 20 to. permit its spiral slot 22 to overlap moreand more of the straight"V slots 23, thus opening progressively a bypassbetween pumping chambers 62 and 63 until, finally, plug valve V20 opensinto unloading conduit 10, thereby providing a free' passage betweendischarge passagesr1r7 and inlet passages" As shown in Fig. 7, almost11o-compression takes placeV between the Itime when the Ycontact ofconical surface.31

with disc'13`passe`s radial lip 65 andthe time when the; contact 'passesthe beginning Vof the bypass thru slots 22' and `23. Substantiallycontinuous vcontrol uof the output' of the compressor from maximum tozero delivery at constant speed is thus attained by this invention.

To avoid hot spots within the compressor and to aid in carrying heat outof the compressor, liquid coolant may be introduced through `conduit 38in conic crank 35, and allowed to rotate in the'interior spaces of thespherical sectors of Wabbler 33. Since Wabbler 33 is prevented fromrotating by plate 34 slidably coacting with fork 40, the coolant willflow around within the spherical sectors of Wabbler 33 by centrifugalforce, and equalize the temperatures of all parts of Wabbler 33.Spherical surfaces 32 of Wabbler 33 operate with minimum runningclearance with respect to spherical liners 26; heat may be transferredfrom Wabbler 33 to liners 26 and thence to frame members 11 and 12.

Adjusting screw 53 may be set to maintain the desired contact or smallrunning clearance between conical surfaces 31 and disc 13. In case ofoverload, spring 35 will be compressed allowing conical surfaces 31 toback away from disc 13, thus making the compressor inoperable. Thisstructure has the function of an unloading device or safety valve.

It is Iobvious to one skilled in the art that compressors of this typecould be arranged in multiple units corresponding to multi-cylinderpiston compressors either to operate in parallel but out of step toproduce a smoother output, 'or in series as a multi-stage compressor.

Having thus described the invention and its operation,

Conic crank itis obvious that the objects as stated have been attainedin a practical way. It is understood that changes may he made in theconstruction and in the arrangement of the various parts of thecompressor without departing from the spirit orscope of the invention asexpressed in the following claims.

I claim:

l. A conic crank compressor comprising a housing having asubstantiallyspherical interior, a diametrical disc member separatingsaid spherical interior into two pumping chambers each -less thanhemispherical, inlet and discharge ports and passages in saiddiametrical disc member and opening into and from said pumping chambers,a ball socket central in said disc member and a sleeve in said disemember extending radially from said socket to. the

periphery of said housing, a wabbler comprising a pilotball operablymounted in said socket and a pair of spherical sectors operable withinsaid pumping chambers and having conical faces coacting with saiddiametrical disc member, a dividing plate radiating from said pilot balland connecting said spherical sectors, a fork slidably astride saiddividing plate and operable within said sleeve and forming with saiddividing plate a radial partition across said pumping chambers, andconic crank means for causing the axis of said wabbler to describe acone and for causing said spherical sectors to gyrate in said pumpingchambers to transfer a working medium from said inlet ports on Vone sideof said radial partition to said discharge ports on the other sidethereof.

2. A conic crank compressor comprising a housing having a substantiallyspherical interior, a diametrical disc member separating said sphericalinterior into two pumping chambers each less than hemispherical, inletand discharge ports and passages in said diametrical disc member andopening into and from said pumping chambers, a ball socket central insaid disc member and a sleeve in said disc member extending radiallyfrom said socket to the periphery of said housing, a wabbler comprisinga pilot ball operably mounted in said socket and a pair of sphericalsectors operable within said pumping chambers and having conical facescoacting with said diametrical disc member, a dividing plate radiatingfrom said pilot ball and connecting said spherical sectors, a sforkslidably astride said dividing plate and operable within said sleeve`and forming with said dividing plate a radial partition across saidpumping chambers, a variable bypass through said diametrical disc memberconnecting said pumping chambers, means for adjusting said bypass,

4 and conic crank means for causing the axis of said wabbler to describea cone and for causing said spherical sectors to gyrate in said pumpingchambers to transfer a working medium from said inlet ports on one sideof said radial partition to said discharge ports on the other sidethereof.

3. A conic crank compressor comprising a housing having a substantiallyspherical interior, a diametrical disc member separating said sphericalinterior into two pumping chambers each less than hemispherical, inletand discharge ports and passages in said diametrical disc member andopening into and from said pumping chambers, a ball socket central insaid dise member and a sleeve in said dise member extending radiallyfrom said socket to the periphery of said housing, a wabbler comprisinga pilot ball operably mounted in said socket and a pair of sphericalsectors operable within said pumping chambers and having conical facescoacting with said diametrical disc member, a dividing plate radiatingfrom said pilot ball and connecting said spherical sectors, a forkslidably astride said dividing plate and operable within said sleeve and`forming with said dividing plate a radial partition across said pumpingchambers, conic crank means for causing the axis of said wabbler todescribe a cone and for causing said spherical sectors to gyrate in saidpumping chambers to transfer a working medium from said inlet ports onone side of said radial partition to said discharge ports on the otherside thereof, and valve means for progressively delaying the start ofcompression to control the output of said compressor, said valve meansincluding a straight slot in said diametrical disc member forming abypass between said pumping chambers and a plug valve interrupting saidstraight slot and having a spiral slot coacting progressively with saidstraight slet to control the output ofv said compressor continuouslyfrom a maximum to a minimum.

References Cited in the ile of this patent UNITED STATES PATENTS 1958,408 Kadow May 17, 1910 2,015,826 Vincent Oct. l, 1935 2,087,772Kempthorne July 20, 1937 2,211,417 Granberg Aug. 13, 1940 2,353,780Neuland July 18, 1944 FOREIGN PATENTS 15,766 Switzerland Nov. 30, 1897251,525 Germany Oct. 4, 1912

